JP2014141188A - Accelerator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an accelerator device that can regulate a rotating angle of a pedal at a normal rotating angle when an accelerator is fully opened.SOLUTION: An arm connection part 34 of a rotating body 38 fixed to an outer wall of a shaft includes a weld line 343 formed at a position where molten resin joins when the rotating body 38 is molded by injection molding of the molten resin. The arm connection part 34 further includes a fully opening stopper surface 35 that abuts on a regulation surface 19 of a support member 10 when an accelerator is fully opened. The fully opening stopper surface 35 is installed at a position other than that of a weld line part 340 in which the weld line 343 is formed. When the accelerator is fully opened, rotating torque T1 of a pedal arm 26 and reaction force T2 are applied to the fully opening stopper surface 35. Since installed at the position other than that of the weld line part 340 having relatively weak strength, the fully opening stopper surface 35 can resist to the forces. Thus damage of the rotating body can be prevented when the accelerator is fully opened.

Description

  The present invention relates to an accelerator device.

  2. Description of the Related Art An accelerator device that controls the acceleration state of a vehicle according to the amount of pedal depression by a driver is known. The accelerator device includes a pedal that a driver can step on, a shaft that is rotatably supported by a support member, a rotating body that connects the shaft and the pedal and rotates integrally with the shaft, and a rotation angle detection that detects the rotation angle of the pedal. Means are provided. For example, Patent Document 1 describes an accelerator device in which, when a pedal rotates in an accelerator opening direction, a rotating body comes into contact with a support member when the accelerator is fully opened.

JP 2011-105249 A

  However, the accelerator device described in Patent Document 1 includes a kick-down switch that outputs a signal for shifting down the transmission when the rotation angle of the pedal becomes larger than a predetermined angle. Since the rotating body of the accelerator device described in Patent Document 1 is formed with a receiving hole for receiving the kick-down switch, a weld line is formed in the vicinity of the receiving hole when the rotating body is formed by injection molding of molten resin. . If the fully open stopper surface that contacts the support member when the accelerator is fully opened is provided on the weld line having relatively weak strength, the strength of the rotating body may be reduced.

  An object of the present invention is to provide an accelerator device that can regulate the rotation angle of a pedal with a normal rotation angle when the accelerator is fully opened.

  The accelerator apparatus according to the present invention is formed by injection molding of a molten resin, and forms a weld line formed at a position where the molten resin flows merge, and a support member in the accelerator fully open position when the shaft rotates in the accelerator opening direction. A rotating body having an abutting surface is provided, and the abutting surface is provided at a position other than a portion where a weld line is formed.

  In the accelerator apparatus of the present invention, the rotating body is formed by injection molding of a molten resin. When the rotating body has a space for accommodating a kick-down switch or the like, the molten resin injected into the mold from the gate provided in the mold is once divided by the core for forming the space, and wraps around the core After joining and fusing. Thereby, a weld line is formed in the rotating body having the space. The portion where the weld line is formed is weaker than the portion where the molten resin is uniformly formed. In the accelerator apparatus of the present invention, the contact surface of the rotating body on which the rotational torque generated by the driver's stepping on and the reaction force from the support member against the rotational torque acts is provided at a position other than the portion where the weld line is formed. Thereby, the rotating body can resist these forces. Therefore, the rotation angle of the pedal can be regulated at a normal rotation angle without damaging the rotating body when the accelerator is fully opened.

It is an external view of the accelerator apparatus by one Embodiment of this invention. It is sectional drawing of the accelerator apparatus by one Embodiment of this invention. It is the III-III sectional view taken on the line of FIG. It is an external view of the rotary body of the accelerator apparatus by one Embodiment of this invention. It is an external view from the direction different from FIG. 4 of the rotary body of the accelerator apparatus by one Embodiment of this invention. It is an external view of the rotary body of the accelerator apparatus of a comparative example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(One embodiment)
An accelerator device according to one embodiment is shown in FIGS. The accelerator device 1 is an input device that is operated by a driver of a vehicle in order to determine a valve opening degree of a throttle valve of a vehicle engine (not shown). The accelerator device 1 is an electronic device, and transmits an electric signal indicating the depression amount of the pedal 28 to an electronic control device of a vehicle (not shown). The vehicle electronic control device drives the throttle valve by a throttle actuator (not shown) based on the depression amount and other information.

  The accelerator device 1 includes a support member 10, a shaft 20, an operation member 30, a return spring 39, a rotation angle sensor 40, a hysteresis mechanism unit 50, and the like. In the following description, the upper side in FIGS. 1 to 3 is referred to as the “top side” and the lower side in FIGS. 1 to 3 is referred to as the “ground side”.

  The support member 10 includes a housing 12, a first cover 14, and a second cover 15. The support member 10 forms an internal space 11 that accommodates the shaft 20, the return spring 39, the rotation angle sensor 40, the hysteresis mechanism 50, and the like. A communication hole 111 corresponding to a movable range of the operation member 30 described later is formed in the lower portion of the support member 10 so as to communicate the internal space 11 and the outside.

  The housing 12 includes a bearing portion 13 that rotatably supports one end portion 201 of the shaft 20, a front portion 122 that is connected to the bearing portion 13 and is located on the front side of the accelerator device 1, and a rear portion 123 that faces the front portion 122. And a resin-made member composed of an upper surface portion 121 that connects the bearing portion 13, the front surface portion 122, and the back surface portion 123 on the top side of the accelerator device 1. The outer walls of the bearing portion 13, the front portion 122, the back portion 123, and the upper surface portion 121 are provided with mesh-like irregularities for maintaining durability against external forces acting on the housing 12.

  An opening into which one end 201 of the shaft 20 is inserted is formed in the bearing portion 13, and the shaft 20 is rotatably provided in the opening. That is, the inner wall of the opening becomes the bearing 130 of one end 201 of the shaft 20.

  As shown in FIG. 1, mounting portions 131, 132, and 133 are formed in the housing 12. Bolt holes are formed in the attachment portions 131, 132, 133, respectively. The accelerator device 1 is attached to the vehicle body 5 by a bolt (not shown) inserted through the bolt hole.

  A regulating surface 19 is formed on the operation member 30 side on the ground side of the back surface portion 123. The restricting surface 19 abuts on a fully open stopper surface 35 provided on the operation member 30 to restrict the rotation angle of the pedal 28 at the accelerator fully open position. The accelerator fully open position is a position that is set such that the degree of depression of the operation member 30 by the driver, that is, the accelerator opening is 100%.

  The first cover 14 and the second cover 15 are provided so as to be substantially parallel to the bearing portion 13 of the housing 12.

  The first cover 14 is formed in a substantially rectangular flat plate shape. The 1st cover 14 is latched by the 2nd cover 15 so that it may contact | abut to the edge part on the opposite side to the side connected to the bearing part 13 of the upper surface part 121, the back surface part 123, and the front part 122. The first cover 14 prevents foreign matter from entering the internal space 11.

  The second cover 15 is formed in a triangular flat plate shape. The second cover 15 is fixed to the end of the back surface 123 and the front surface 122 opposite to the side connected to the bearing portion 13 by screws 16, 17, and 18. A concave portion into which the other end 202 of the shaft 20 is inserted is formed on the inner wall of the second cover 15 on the inner space 11 side, and the shaft 20 is rotatably provided in the concave portion. That is, the inner wall of the recess serves as the bearing 150 of the other end 202 of the shaft 20. The second cover 15 prevents foreign matter from entering the internal space 11.

  The shaft 20 is provided horizontally on the ground side of the accelerator device 1. At one end 201 of the shaft 20, a sensor housing recess 22 that houses the detection unit of the rotation angle sensor 40 is formed. A yoke 42 made of a magnetic material and formed in a cylindrical shape is fixed to the inner wall of the sensor receiving recess 22. A pair of magnets 44 and 45 having different magnetic poles are provided on the inner wall of the yoke 42 so as to face each other with the rotation axis of the shaft 20 interposed therebetween.

  The shaft 20 rotates within a predetermined angle range from the accelerator fully closed position to the accelerator fully open position in accordance with the torque input from the operation member 30 as the driver depresses. The accelerator fully closed position is a position indicated by a solid line in FIG. 2 and is a position set so that the degree of depression of the operation member 30 by the driver, that is, the accelerator opening is 0%.

  Hereinafter, the rotation direction of the operating member 30 from the accelerator fully closed position toward the accelerator fully open position will be referred to as “accelerator open direction”. Further, the rotation direction of the operating member 30 from the accelerator fully open position toward the accelerator fully closed position is described as “accelerator close direction”.

The operation member 30 includes a rotating body 38, a pedal arm 26, and a pedal 28. The pedal arm 26 and the pedal 28 correspond to a “stepping member” described in the claims.
As shown in FIGS. 2, 4 and 5, the rotating body 38 has a boss portion 31, a spring receiving portion 32, a fully closed stopper portion 33, and an arm connecting portion 34, which are integrally formed of resin. .

  The boss portion 31 is formed in a substantially columnar shape, and is provided between the bearing portion 13 and the second cover 15 as shown in FIG. The boss portion 31 forms a through hole 311 through which the shaft 20 is inserted in the axial direction. The boss 31 is fixed to the outer wall of the shaft 20 inserted through the through hole 311 by, for example, press fitting. Thereby, the rotating body 38 rotates integrally with the shaft 20.

  First helical teeth 312 are formed on the side surface of the boss portion 31 on the second cover 15 side. A plurality of first helical teeth 312 are formed at equal intervals in the circumferential direction. The first helical tooth 312 has an inclined surface that protrudes toward the rotor 54 side of the hysteresis mechanism portion 50 in the circumferential direction in the accelerator closing direction and approaches the rotor 54 in the tip portion toward the accelerator closing direction.

  A first friction member 313 is provided on the side surface of the boss portion 31 on the bearing portion 13 side. The first friction member 313 is formed in an annular shape, and is provided between the boss portion 31 and the inner wall of the bearing portion 13 of the housing 12 in the radially outward direction of the shaft 20. When the boss portion 31 is pushed away from the rotor 54, that is, in the direction of the bearing portion 13, the boss portion 31 frictionally engages with the first friction member 313. The frictional force between the boss part 31 and the first friction member 313 becomes the rotational resistance of the boss part 31.

  As shown in FIG. 2, the spring receiving portion 32 is formed to extend from the boss portion 31 in the top direction in the internal space 11. The spring receiving portion 32 locks one end of the return spring 39.

The fully closed stopper portion 33 is formed so as to extend further upward from the spring receiving portion 32 in the internal space 11. The fully closed stopper 33 restricts the rotation of the rotating body 38 in the accelerator closing direction at the accelerator fully closed position when the side wall 331 contacts the inner wall of the back surface 123 of the housing 12.
A gate mark 381 is formed on the side wall 332 different from the side wall 331 of the fully closed stopper portion 33 as shown in FIG. The gate mark 381 indicates the position of the gate into which the molten resin is injected when the rotating body 38 is formed by injection molding using a mold.

  The arm connecting portion 34 is provided on the substantially opposite side of the spring receiving portion 32 and the fully closed stopper portion 33 with respect to the boss portion 31. The arm connecting portion 34 is formed so as to extend from the internal space 11 through the communication hole 111 of the housing 12 to the outside of the support member 10. The arm connecting portion 34 includes a through-hole 341 formed substantially parallel to the through-hole 311 of the boss portion 31, a kick-down switch housing hole 342 formed substantially perpendicular to the through-hole 311, and the through-hole 341. A recess 344 is formed on the side wall of the communication arm connecting portion 34. One end 261 of the pedal arm 26 is inserted into the through hole 341. The kick-down switch housing hole 342 houses a kick-down switch (not shown). Here, the kick down switch is a component that outputs a signal for shifting down the transmission when the rotation angle of the pedal becomes larger than a predetermined angle. An intermediate portion 263 connected to one end 261 of the pedal arm 26 is fitted into the recess 344.

  Further, a weld line 343 (two-dot chain line in FIG. 4B) is formed in the arm connecting portion 34 when the rotating body 38 is formed. When the rotating body 38 is molded by injection molding using a mold, the molten resin is injected from the mold gate of the rotating body 38 provided at a position corresponding to the gate mark 381 of the fully-closed stopper portion 33 and is received by a spring holder. It flows uniformly in the space in the mold corresponding to the portion 32 and the boss portion 31. Thereafter, the molten resin is used to form a kickdown switch accommodation hole 342 in the space in the mold corresponding to the arm connecting portion 34, as indicated by the dashed lines L1 and L2 in FIG. Flows around the core in the mold. The molten resin that bypasses the core corresponding to the kick down switch housing hole 342 as indicated by arrows L1 and L2 joins and is fused to the kick down switch housing hole 342 at a position opposite to the gate mark 381. In this way, a weld line 343 is formed in the arm connecting portion 34. Thereby, the arm connection part 34 has the weld line part 340 in which the weld line 343 is formed in the position shown with the dotted line of FIG.4 (b). The weld line portion 340 corresponds to a “part where a weld line is formed” described in the claims.

  The fully open stopper surface 35 is an outer wall 345 of the arm connecting portion 34 on the support member 10 side, and is provided at a position other than the weld line portion 340 as shown in FIG. Further, as shown in FIG. 5A when the rotating body 38 is viewed from the direction in which the pedal arm 26 extends, the fully open stopper surface 35 is formed at the center of the intermediate portion 263 of the pedal arm 26 when the pedal arm 26 and the pedal 28 are rotated. It is formed in a convex shape on the intersection line S1 formed by the virtual plane P1 formed by the axis φ and the outer wall 345. The fully open stopper surface 35 corresponds to a “contact surface” recited in the claims. In FIG. 4B, a circular portion is indicated by a dotted line for easy understanding of the position of the fully open stopper surface 35, but the shape of the fully open stopper surface 35 is not limited to a circular shape.

  As shown in FIGS. 1 and 2, the pedal arm 26 is formed so that one end 261 is fixed to the arm connecting portion 34 of the rotating body 38 and extends in the ground direction. One end portion 261 of the pedal arm 26 is inserted into the through hole 341 of the arm connecting portion 34, and the intermediate portion 263 is fitted in the concave portion 344. A pedal 28 is connected to the other end 262 of the pedal arm 26.

  The pedal 28 converts the pedaling force of the driver into a rotational torque centered on the rotational axis of the shaft 20 and transmits the rotational torque to the shaft 20 via the rotating body 38.

  When the pedal 28 rotates in the accelerator opening direction from the fully closed state of the accelerator device 1 shown in FIG. 2, the rotation angle of the pedal 28 in the accelerator opening direction with the accelerator fully closed position as a base point increases. Hereinafter, as shown in FIG. 2, when the pedal arm 26 and the pedal 28 are moved to the positions indicated by dotted lines, the rotation angle of the pedal 28 is defined as a rotation angle θ. The accelerator opening increases corresponding to the rotation angle θ. Further, when the pedal 28 rotates in the accelerator closing direction, the rotation angle θ of the pedal 28 decreases, and the accelerator opening decreases.

  The return spring 39 is composed of a coil spring, and the other end is locked to the inner wall of the front portion 122. The return spring 39 as “biasing means” biases the operation member 30 in the accelerator closing direction. The biasing force that the return spring 39 acts on the operation member 30 increases as the rotation angle of the pedal 28, that is, the rotation angle θ of the operation member 30 increases. The urging force is set so that the operation member 30 and the shaft 20 can be returned to the accelerator fully closed position regardless of the rotation position of the operation member 30.

  The rotation angle sensor 40 is provided on the bearing portion 13 side of the support member 10. The rotation angle sensor 40 as “rotation angle detection means” includes a first Hall IC 46, a second Hall IC 48, and the like. When the pedal arm 26 rotates, the shaft 20 and the magnets 44 and 45 rotate, and the magnetic field around the end of the shaft 20 changes. The first Hall IC 46 and the second Hall IC 48 of the rotation angle sensor 40 convert the change in the magnetic field into an electric signal, and transmits the electric signal to an ECU (not shown) provided outside the accelerator device 1 via the connector 41. To do. The ECU can detect the rotational position of the operation member 30 based on the transmitted electrical signal.

  The hysteresis mechanism 50 includes a rotor 54, a second friction member 58, a hysteresis spring 59, and the like.

  The rotor 54 is provided between the boss portion 31 and the inner wall of the second cover 15 in the radially outward direction of the shaft 20. The rotor 54 is formed in an annular shape, can rotate relative to the shaft 20 and the boss portion 31, and can approach or be separated from the boss portion 31. A second helical tooth 541 is integrally formed on the side surface of the rotor 54 on the boss portion 31 side. A plurality of second helical teeth 541 are formed at equal intervals in the circumferential direction. The second helical tooth 541 has an inclined surface that protrudes toward the boss 31 in the circumferential direction in the accelerator opening direction and approaches the rotor 54 in the distal end portion in the accelerator opening direction.

  The first helical teeth 321 and the second helical teeth 541 can transmit rotation between the boss portion 31 and the rotor 54 by causing the inclined surfaces to contact each other in the circumferential direction. That is, the rotation of the boss portion 31 in the accelerator opening direction can be transmitted to the rotor 54 via the first helical teeth 321 and the second helical teeth 541. The rotation of the rotor 54 in the accelerator closing direction can be transmitted to the boss portion 31 via the second helical teeth 541 and the first helical teeth 321.

  The first helical teeth 321 and the second helical teeth 541 engage with each other when the rotation angle of the pedal 28 is closer to the accelerator opening direction than the rotation angle when the accelerator is fully closed. The boss 31 and the rotor 54 are separated from each other. At this time, the first helical teeth 321 push the boss portion 31 toward the housing 12 with a greater force as the rotation angle of the pedal 28 from the accelerator fully closed position increases. Further, the second helical teeth 541 push the rotor 54 toward the second cover 15 with a greater force as the rotation angle of the pedal 28 from the accelerator fully closed position increases.

  The second friction member 58 is formed in an annular shape and is provided between the rotor 54 and the inner wall of the second cover 15 in the radially outward direction of the shaft 20. When the rotor 54 is pushed away from the boss portion 31, that is, in the direction of the second cover 15, the rotor 54 frictionally engages with the second friction member 58. The frictional force between the rotor 54 and the second friction member 58 becomes the rotational resistance of the rotor 54.

  The hysteresis spring 59 is constituted by a coil spring. One end of the hysteresis spring 59 is locked to the spring receiving member 552. The spring receiving member 552 is engaged with a spring locking portion 55 formed so as to extend from the rotor 54 in the top direction in the internal space 11. The other end is locked to the inner wall of the front portion 122. The hysteresis spring 59 urges the rotor 54 in the accelerator closing direction. The biasing force of the hysteresis spring 59 increases as the rotation angle of the rotor 54 increases. Torque received by the rotor 54 by the biasing force of the hysteresis spring 59 is transmitted to the boss portion 31 via the second helical teeth 541 and the first helical teeth 321.

  Next, the operation of the accelerator device 1 will be described.

  When the pedal 28 is not depressed by the driver, a rotational torque in the accelerator closing direction acts on the operating member 30 by the return spring 39. On the other hand, when the operation member 30 rotates in the accelerator closing direction, the side wall 331 of the fully closed stopper portion 33 of the rotating body 38 comes into contact with the inner wall of the back surface portion 123. Thereby, the rotation angle of the pedal 28 becomes constant.

  When the pedal 28 is depressed by the driver, the operation member 30 rotates around the rotation axis of the shaft 20 in the accelerator opening direction together with the shaft 20 in accordance with the depression force applied to the pedal 28. At this time, in order for the shaft 20 and the operation member 30 to rotate, the sum of the torque due to the biasing force of the return spring 39 and the hysteresis spring 59 and the resistance torque due to the frictional force of the first friction member 313 and the second friction member 58 The pedaling force that produces a large torque is also required.

The resistance torque due to the frictional force of the first friction member 313 and the second friction member 58 acts to suppress the rotation of the pedal 28 in the accelerator opening direction when the pedal 28 is depressed. As a result, the pedaling force increases when the pedaling force of the pedal 28 is depressed and the rotation angle is the same as the relationship between the pedaling force and the rotation angle when the pedal 28 is returned.
When the operation member 30 rotates in the accelerator opening direction, the fully open stopper surface 35 of the rotating body 38 comes into contact with the regulating surface 19 of the back surface portion 123. Thereby, the rotation angle of the pedal 28 in the accelerator opening direction is restricted.

  In order to maintain the depression of the pedal 28 after the pedal 28 is depressed, the torque generated by the biasing force of the return spring 39 and the hysteresis spring 59 and the anti-torque generated by the frictional force of the first friction member 313 and the second friction member 58 are reduced. What is necessary is just to add the treading force which produces a torque larger than a difference. That is, when the driver wants to maintain the depression of the pedal 28 after depressing the pedal 28, the driver may relax the pedaling force somewhat. That is, the resistance torque due to the frictional force of the first friction member 313 and the second friction member 58 acts to suppress the rotation of the pedal 28 in the accelerator closing direction when the pedal 28 is kept depressed.

  In order to return the depression of the pedal 28 to the accelerator fully closed position side, the difference between the torque by the urging force of the return spring 39 and the hysteresis spring 59 and the resistance torque by the frictional force of the first friction member 313 and the second friction member 58 is obtained. Will also add a pedal force that produces a small torque. Here, in order to quickly return the pedal 28 to the accelerator fully closed position, it is only necessary to stop the depression of the pedal 28, so that the driver is not burdened. That is, the burden on the driver when returning the pedal 28 is reduced. The resistance torque due to the frictional force of the first friction member 313 and the second friction member 58 acts to suppress the rotation of the pedal 28 in the accelerator closing direction when the pedal 28 is depressed.

In the accelerator device 1 according to the embodiment, the fully open stopper surface 35 that contacts the restriction surface 19 of the back surface portion 123 is provided at a position other than the weld line portion 340 of the arm connecting portion 34 when the accelerator is fully opened.
Here, the position where the fully open stopper surface 35 in the rotating body 38 of the accelerator device 1 according to the embodiment is provided is compared with the position where the fully opened stopper surface 65 in the rotating body 68 of the accelerator device of the comparative example is provided. FIG. 6 shows, as a comparative example, an external view of the rotating body 68 of the accelerator device in which the fully open stopper surface is formed on the weld line, and the rotating body 68 viewed from the direction in which the pedal arm 66 extends.

  In the accelerator device of the comparative example, the arm connecting portion 64 of the rotating body 68 has a weld line 643. When the accelerator is fully opened, the fully open stopper surface 65 formed on the weld line portion 640 where the weld line 643 is formed contacts the regulating surface 69 of the support member 60 in the accelerator device of the comparative example, whereby the rotation angle in the accelerator opening direction To regulate. At this time, as shown in FIG. 6B, the rotational torque T3 generated by the driver's stepping on acts on the restriction surface 69 via the fully open stopper surface 65, while Reaction force T4 acts. As described above, the weld line portion 640 has a relatively low strength because it is a portion where the molten resin that has flowed from different directions is fused. For this reason, there exists a possibility that the arm connection part 64 may be damaged by reaction force T4.

  On the other hand, in the accelerator apparatus 1 according to the embodiment, the fully open stopper surface 35 is formed at a position other than the weld line portion 340 having relatively low strength. As shown in FIG. 5 (b), when the accelerator is fully opened, the rotation angle of the operation member 30 is restricted by the fully open stopper surface 35 coming into contact with the restriction surface 19 of the support member 10. The fully open stopper surface 35 is formed with a molten resin flowing uniformly when the rotating body 38 is formed, and therefore has a higher strength than the weld line portion 340. Thereby, even if the reaction force T2 with respect to rotational torque T1 acts from the control surface 19 at the time of accelerator full opening, the rotary body 38 resists these forces, and does not break. Therefore, when the accelerator is fully opened, the rotating body 38 can be prevented from being damaged, and the rotation angle of the pedal 28 can be maintained at a normal angle.

  Further, as shown in FIG. 5B, the fully open stopper surface 35 of the accelerator device 1 includes a virtual surface P1 through which the central axis φ of the intermediate portion 263 passes when the pedal arm 26 rotates, and an outer wall 345 of the arm connecting portion 34. Are provided on the intersection line S1. As a result, the rotational torque T1 and the reaction force T2 act on the rotating body 38 on the same axis, so that no rotating moment is generated in the rotating body 38. Therefore, since the rotating body 38 is not stressed as compared with the case where the fully open stopper surface 35 is formed in a portion different from the direction in which the pedal arm 26 rotates, it is possible to further prevent the rotating body 38 from being damaged.

  The fully open stopper surface 35 is formed in a convex shape. Thereby, the site | part which forms the fully open stopper surface 35 becomes thick compared with the circumference | surroundings, and can resist the rotational torque T1 and reaction force T2 which act on the fully open stopper surface 35 more. Therefore, damage to the rotating body 38 can be further prevented.

(Other embodiments)
(A) In the above-described embodiment, the fully open stopper surface is provided on the intersection line between the virtual surface through which the central axis of the pedal arm field intermediate portion passes and the outer wall of the arm connecting portion when the pedal arm rotates. However, the position where the fully open stopper surface is provided is not limited to this. It may be provided at a position other than the weld line portion and at a position where the rotation angle of the pedal is restricted by contacting the support member when the accelerator is fully opened.

  (A) In the above-described embodiment, the weld line is formed of the molten resin that bypasses the core in the mold corresponding to the kick-down switch housing hole formed in the arm connecting portion. However, the cause of the formation of the weld line is not limited to this. A mold pin or core that forms a space different from the kick-down switch housing hole, and a weld line may be formed by the pin or core that separates the flow of the molten resin when the molten resin is injected into the mold. .

  (C) In the above-described embodiment, the fully open stopper surface is formed in a convex shape. However, the shape of the fully open stopper surface is not limited to this. When the rotating body rotates in the accelerator opening direction, it is sufficient to first contact the regulating surface of the support member.

  As mentioned above, this invention is not limited to such embodiment, It can implement with a various form in the range which does not deviate from the summary.

1 ... Accelerator device,
10: Support member,
20 ... shaft,
26 ... Pedal arm (stepping member),
28 ... Pedal (stepping member),
340... Weld line part (site where the weld line is formed),
343 ... weld line,
35 ・ ・ ・ Fully open stopper surface (contact surface),
38 ・ ・ ・ Rotating body,
39 ・ ・ ・ Return spring (biasing means),
40: Rotation angle sensor (rotation angle detection means).

Claims (4)

A support member (10) attachable to the vehicle body (5);
A shaft (20) rotatably supported by the support member;
A stepping member (26, 28) that the driver can step on;
A weld line (343) that is formed by injection molding of a molten resin, rotates integrally with the shaft, and is formed at a position where the flow of the molten resin at the time of injection molding joins, and a portion where the weld line is formed ( A rotating body (38) provided at a position other than 340) and having an abutment surface (35) that abuts the support member at the accelerator fully open position when the shaft rotates in the accelerator opening direction;
Rotation angle detection means (40) for detecting the rotation angle of the shaft relative to the support member;
Biasing means (39) for biasing rotation of the shaft in the accelerator closing direction;
An accelerator device comprising: The stepping member has a pedal (28) on which a driver's stepping force acts, and a pedal arm (26) that connects the pedal and the rotating body,
The contact surface includes an imaginary surface (P1) through which a central axis (φ) of a portion (263) of the pedal arm that is connected to the rotating body when the stepping member rotates, and the supporting member side of the rotating body. 2. The accelerator apparatus according to claim 1, comprising a line of intersection (S1) with the outer wall (345).   The accelerator device according to claim 1, wherein the contact surface is formed in a convex shape. The rotating body includes a boss portion (31) fixed to the outer wall of the shaft, an accommodation hole (341) provided between the boss portion and the stepping member and accommodating a kick-down switch, and the contact surface. An arm connecting portion (34) to be formed and a fully closed stopper portion which is provided on the opposite side of the arm connecting portion with respect to the boss portion and contacts the support member at the accelerator fully closed position when the shaft rotates in the accelerator closing direction. (33)
The said rotary body is formed with the molten resin inject | poured from the gate provided in the position corresponding to the said full closure stopper part of the metal mold | die of the said rotary body. The accelerator device according to 1.

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